The Vegetable Individual in its relation to Species. 69 
ramifications of Bucephalus (which according to Steenstrup’s 
supposition is the larva of Aspidogaster conchila) as represented 
by Baer in Nov. Act. Nat. Cur., xiii, 2 belong here. 
In our qualitative comparison of shoots, it was shown how the 
Shoot can be limited to a few leaves, or even toa single one; in 
_ like manner the animal individual, in the division of ré6/e which 
occurs in alternation of generation, can become the representa- 
tive of one single organ, of one single function. Thus the fe- 
males of Coryne squamata are hardl y apything more than egg- 
Stocks, and the males than seed-stocks.* ‘I'he members of the 
tapeworm, which are so many individuals of the final generation, 
hardly represent anything more than hemaphrodite sexual appa- 
rat As an analogous example in the vegetable kingdom per- 
haps the Willowt+ may be compared to the Coryne; here too the 
shoots of the last degree are nothing but naked unisexual appa- 
ratus of reproduction. In Potamogeion,{ on the contrary, they 
are hemaphrodite, as in the tapeworm. The construction of 
many of the lower animals, which when considered as individ- 
omes mor 
_ Ration of generation complicated by division perfectly similar to 
_. those which occur in the ing Rin « 
8° through an alternation of generation the individuals of the 
obtains, for instance, in the ta 
rolceivable: the final individuals of both sexes can be nourished 
by the same nurse, and hence the sexual division will first take 
Place in the second, or generally speaking, in the last generation ; 
Cf Wiegm. Ar- 
